A frund is someone who people would perceive to be your best friend from the outside but actually you are in a secret and most likely very passionate love affair.
by underwateroctopus February 23, 2016
by Mouse frunds March 31, 2018
A FRIEND or buddy that you go on RUNS or exercise with. A great motivator/pacesetter who can help you reach your goals and exceed physical limits. It's always safer to go take a Frund along too!
by jeshhhy September 21, 2015